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The Watch, iPhone 7 and iPhone 7 Plus will go on sale on September 16, with pre-orders for the devices beginning on Friday.

Instead of the traditional headphone connection, iPhone packages will now come with earphones that fit into the phone's Lighting port, currently used for charging and data transfer.

However, Apple also revealed new wireless earphones, called AirPods, that will connect to both iPhone and Apple Watch remotely.

Wireless headphones (Photo: Getty Images)

An adaptor that enables traditional headphones to continue to plug into the iPhone will also be included in the box.

The iPhone 7 has also had its camera completely redesigned, with a much-rumoured second lens being added to the larger iPhone 7 Plus that will enable users to capture more zoomed images without losing picture quality.

The lenses across the two phones now contain a 12 megapixel sensor.

The tech giant's chief executive Tim Cook said of the smartphone: "It has become the industry gold standard.

"iPhone is the phone by which all others are measured and it has become a cultural phenomenon."

In July, the tech giant revealed it had sold the one billionth unit of the device, while Mr Cook said the Apple Watch was now the world's second most popular watch brand and most popular smartwatch.